Natural builder Ben Graham and custom woodworker Mike Lamp demonstrate how they recently designed and built a 3-1/2-in.-thick R-10 wood door using salvaged cherry lumber. The door’s construction details, product selections, and design choices are explained thoroughly. The second half of the article shows how Graham and Lamp installed the 140-lb. door and integrated it into the home’s building envelope. Exploded drawings show how the door and its two-piece jamb assembly are constructed.

Download the pdf for this exterior door.